FAMILY ACCIPITRIDAE 245 



(238.5), culmen from cere 24.5-28.0 (25.9), tarsus 72-84 {77) mm. 



Females, wing 394-423 (411.7), tail 230-253 (242), culmen from 

 cere 26-30 (28), tarsus 88-99 (93.4) mm. 



Resident. Rare, in forested areas from the tropical lowlands to 

 1,650 meters elevation in the mountains of Chiriqui. 



Though this handsome hawk eagle ranges from southern Mexico 

 to northeastern Argentina and southern Brazil it seems uncommon 

 throughout this vast area, since it is known mainly through scattered 

 reports. 



The few records for Panama are as follows : 



CniRiQuf : Above Boquete, at Lerida, June 10, 1936, and Velo, May 26, 1932, 

 Sept. 1, 1939 (Blake, Fieldiana ; Zool., vol. 36, 1958, p. 506). 



Veraguas : Specimen in British Museum, without specific locality, taken in 

 May 1874 by Arce. 



BocAs DEL ToRo: Banana River, Dec. 10, 1927 (Peters, Bull. Mus. Comp. 

 Zool., vol. 71, 1931, p. 309) ; Cricamola, Sept. 4, 1936, specimen at Univer- 

 sity of California in Los Angeles, taken by Loye Miller. 



Canal Zone: Near Lion Hill, specimen taken by McLeannan, 1863, in 

 British Museum; Barro Colorado Island (Chapman, My Tropical Air 

 Castle, 1929, p. 401). 



Panama Province : La Jagua, Jan. 25, 1958, F. A. Hartman (identified from 

 kodachrome slides ; specimen not preserved) ; Chepo, April 22, 1949, fe- 

 male; Charco del Toro, Rio Maje, March 28, 1950 (sight record, Wet- 

 more). 



The bird shot on April 22, 1949, was secured in the hills at 

 Camaron, near the Rio Mamoni above Chepo. It came with con- 

 siderable force through high forest to strike at Aragari toucans that 

 chattered and dashed about in the branches, much excited. Another 

 was seen the following year in heavy forest above the head of 

 tidewater on the Rio Maje, The contrasted black and white colors 

 made both of these individuals conspicuous even in the dark shadow 

 beneath the dense leaves of the forest canopy. 



Nothing appears to be recorded regarding the nest. Schonwetter 

 (Handb. Ool., pt. 3, 1961, p. 170) gives the dimensions of 3 eggs 

 as 60.1-62.4x49.9-53.3 mm., but includes no details regarding color or 

 marking. Kreuger (Ool. Rec, 1963, p. 6) reports two sets of 2 

 eggs each, both collected in British Guiana on April 27, 1927, and in 

 March, 1928. He describes the ground color as cream-white spotted 

 with dark brown, gray-lilac, and light brown, varying in extent of 

 marking from heavily spotted to sparingly marked. Size in one 

 set is given as 62.4 X 47.5 mm., and 62.2 X 48 mm. 



From external characters this species is separated generically from 

 Spizaetus by the outermost or first primary longer than the inner- 



